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<base href="https://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Assertion failed: isa<LabelDecl>(D) && "declaration not instantiated in this scope""
href="https://llvm.org/bugs/show_bug.cgi?id=28500">28500</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Assertion failed: isa<LabelDecl>(D) && "declaration not instantiated in this scope"
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.8
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Frontend
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jtony@ca.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Steps to reproduce on linux:
-bash-4.2$ cat r.cpp
template <class T> void bar(T t = [](decltype(t) i){return 0;}(0)) {}
void foo()
{
bar<int>();
}
-bash-4.2$ pwd
/home/jtony/workitems/132592
-bash-4.2$ cat r.cpp
template <class T> void bar(T t = [](decltype(t) i){return 0;}(0)) {}
void foo()
{
bar<int>();
}
bash-4.2$ myclang++ r.cpp -std=c++11
clang:
/home/jtony/build/3_8/llvm-dev.src/tools/clang/lib/Sema/SemaTemplateInstantiate.cpp:2811:
llvm::PointerUnion<clang::Decl*, llvm::Smal
lVector<clang::ParmVarDecl*, 4u>*>*
clang::LocalInstantiationScope::findInstantiationOf(const clang::Decl*):
Assertion `isa<LabelDecl>(D) &&
"declaration not instantiated in this scope"' failed.
0 clang 0x000000001568c4e4 llvm::sys::PrintStackTrace(llvm::raw_ostream&)
+ 68
...
clang version 3.8.0 (tags/RELEASE_380/final)
Target: powerpc64le-unknown-linux-gnu
Thread model: posix
-bash-4.2$ type myclang
myclang is aliased to `/home/jtony/build/runnable/bin/clang'</pre>
</div>
</p>
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